1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
|
/*-
* Copyright (c) 2012 Advanced Computing Technologies LLC
* Written by: John H. Baldwin <jhb@FreeBSD.org>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#ifndef lint
static const char rcsid[] =
"$FreeBSD$";
#endif /* not lint */
#include <sys/param.h>
#include <sys/pciio.h>
#include <err.h>
#include <stdio.h>
#include <dev/pci/pcireg.h>
#include "pciconf.h"
struct bit_table {
uint32_t mask;
const char *desc;
};
/* Error indicators in the PCI status register (PCIR_STATUS). */
static struct bit_table pci_status[] = {
{ PCIM_STATUS_MDPERR, "Master Data Parity Error" },
{ PCIM_STATUS_STABORT, "Sent Target-Abort" },
{ PCIM_STATUS_RTABORT, "Received Target-Abort" },
{ PCIM_STATUS_RMABORT, "Received Master-Abort" },
{ PCIM_STATUS_SERR, "Signalled System Error" },
{ PCIM_STATUS_PERR, "Detected Parity Error" },
{ 0, NULL },
};
/* Valid error indicator bits in PCIR_STATUS. */
#define PCI_ERRORS (PCIM_STATUS_MDPERR | PCIM_STATUS_STABORT | \
PCIM_STATUS_RTABORT | PCIM_STATUS_RMABORT | \
PCIM_STATUS_SERR | PCIM_STATUS_PERR)
/* Error indicators in the PCI-Express device status register. */
static struct bit_table pcie_device_status[] = {
{ PCIEM_STA_CORRECTABLE_ERROR, "Correctable Error Detected" },
{ PCIEM_STA_NON_FATAL_ERROR, "Non-Fatal Error Detected" },
{ PCIEM_STA_FATAL_ERROR, "Fatal Error Detected" },
{ PCIEM_STA_UNSUPPORTED_REQ, "Unsupported Request Detected" },
{ 0, NULL },
};
/* Valid error indicator bits in the PCI-Express device status register. */
#define PCIE_ERRORS (PCIEM_STA_CORRECTABLE_ERROR | \
PCIEM_STA_NON_FATAL_ERROR | \
PCIEM_STA_FATAL_ERROR | \
PCIEM_STA_UNSUPPORTED_REQ)
/* AER Uncorrected errors. */
static struct bit_table aer_uc[] = {
{ PCIM_AER_UC_TRAINING_ERROR, "Link Training Error" },
{ PCIM_AER_UC_DL_PROTOCOL_ERROR, "Data Link Protocol Error" },
{ PCIM_AER_UC_SURPRISE_LINK_DOWN, "Surprise Link Down Error" },
{ PCIM_AER_UC_POISONED_TLP, "Poisoned TLP" },
{ PCIM_AER_UC_FC_PROTOCOL_ERROR, "Flow Control Protocol Error" },
{ PCIM_AER_UC_COMPLETION_TIMEOUT, "Completion Timeout" },
{ PCIM_AER_UC_COMPLETER_ABORT, "Completer Abort" },
{ PCIM_AER_UC_UNEXPECTED_COMPLETION, "Unexpected Completion" },
{ PCIM_AER_UC_RECEIVER_OVERFLOW, "Receiver Overflow Error" },
{ PCIM_AER_UC_MALFORMED_TLP, "Malformed TLP" },
{ PCIM_AER_UC_ECRC_ERROR, "ECRC Error" },
{ PCIM_AER_UC_UNSUPPORTED_REQUEST, "Unsupported Request" },
{ PCIM_AER_UC_ACS_VIOLATION, "ACS Violation" },
{ PCIM_AER_UC_INTERNAL_ERROR, "Uncorrectable Internal Error" },
{ PCIM_AER_UC_MC_BLOCKED_TLP, "MC Blocked TLP" },
{ PCIM_AER_UC_ATOMIC_EGRESS_BLK, "AtomicOp Egress Blocked" },
{ PCIM_AER_UC_TLP_PREFIX_BLOCKED, "TLP Prefix Blocked Error" },
{ 0, NULL },
};
/* AER Corrected errors. */
static struct bit_table aer_cor[] = {
{ PCIM_AER_COR_RECEIVER_ERROR, "Receiver Error" },
{ PCIM_AER_COR_BAD_TLP, "Bad TLP" },
{ PCIM_AER_COR_BAD_DLLP, "Bad DLLP" },
{ PCIM_AER_COR_REPLAY_ROLLOVER, "REPLAY_NUM Rollover" },
{ PCIM_AER_COR_REPLAY_TIMEOUT, "Replay Timer Timeout" },
{ PCIM_AER_COR_ADVISORY_NF_ERROR, "Advisory Non-Fatal Error" },
{ PCIM_AER_COR_INTERNAL_ERROR, "Corrected Internal Error" },
{ PCIM_AER_COR_HEADER_LOG_OVFLOW, "Header Log Overflow" },
{ 0, NULL },
};
static void
print_bits(const char *header, struct bit_table *table, uint32_t mask)
{
int first;
first = 1;
for (; table->desc != NULL; table++)
if (mask & table->mask) {
if (first) {
printf("%14s = ", header);
first = 0;
} else
printf(" ");
printf("%s\n", table->desc);
mask &= ~table->mask;
}
if (mask != 0) {
if (first)
printf("%14s = ", header);
else
printf(" ");
printf("Unknown: 0x%08x\n", mask);
}
}
void
list_errors(int fd, struct pci_conf *p)
{
uint32_t mask, severity;
uint16_t sta, aer;
uint8_t pcie;
/* First check for standard PCI errors. */
sta = read_config(fd, &p->pc_sel, PCIR_STATUS, 2);
print_bits("PCI errors", pci_status, sta & PCI_ERRORS);
/* See if this is a PCI-express device. */
pcie = pci_find_cap(fd, p, PCIY_EXPRESS);
if (pcie == 0)
return;
/* Check for PCI-e errors. */
sta = read_config(fd, &p->pc_sel, pcie + PCIER_DEVICE_STA, 2);
print_bits("PCI-e errors", pcie_device_status, sta & PCIE_ERRORS);
/* See if this device supports AER. */
aer = pcie_find_cap(fd, p, PCIZ_AER);
if (aer == 0)
return;
/* Check for uncorrected errors. */
mask = read_config(fd, &p->pc_sel, aer + PCIR_AER_UC_STATUS, 4);
severity = read_config(fd, &p->pc_sel, aer + PCIR_AER_UC_SEVERITY, 4);
print_bits("Fatal", aer_uc, mask & severity);
print_bits("Non-fatal", aer_uc, mask & ~severity);
/* Check for corrected errors. */
mask = read_config(fd, &p->pc_sel, aer + PCIR_AER_COR_STATUS, 4);
print_bits("Corrected", aer_cor, mask);
}
|
